Consolidated Statements Of Cash Flows (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Cash Flows from Operating Activities
Net income (loss)	$ 16,523	$ (91,068)	$ (52,025)
Income (loss) from discontinued operations	7,307	(15,712)	(12,453)
Income (loss) from continuing operations	9,216	(75,356)	(39,572)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization	26,181	23,964	23,221
Provision for deferred income taxes	5,028	(10,629)	(17,671)
Stock compensation expense	4,642	4,315	4,407
Non-cash charges to interest expense	2,328	4,324	3,382
Intangible asset impairment		76,964	60,098
Other non-cash adjustments	3,321	7,252	2,930
Increase (decrease) in cash resulting from changes in the following (excluding the effects of acquisitions):
Accounts receivable	(7,612)	(4,186)	28,706
Inventories	(10,101)	152	42,410
Other current assets and other assets	10,172	1,626	(8,613)
Accounts payable	2,076	12,506	(14,606)
Accrued expenses and other non-current liabilities	4,577	6,259	4,177
Net cash provided by operating activities of continuing operations	49,828	47,191	88,869
Net cash (used in) provided by operating activities of discontinued operations	(3,133)	22,178	42,250
Net cash provided by operating activities	46,695	69,369	131,119
Cash Flows from Investing Activities
Cash paid for acquisitions, net of cash acquired	(109,248)		(4,949)
Purchases of property, plant, and equipment	(11,552)	(8,362)	(9,791)
Purchase of equity method investment	(250)	(1,250)
Net proceeds from sale of property and equipment	1,226	221	292
Net proceeds from sale of businesses	67,529	29,164
Net cash (used in) provided by investing activities of continuing operations	(52,295)	19,773	(14,448)
Net cash provided by (used in) investing activities of discontinued operations	2,089	(384)	(1,015)
Net cash (used in) provided by investing activities	(50,206)	19,389	(15,463)
Cash Flows from Financing Activities
Long-term debt payments	(74,262)	(58,967)	(182,401)
Proceeds from long-term debt	73,849	8,559	83,022
Payment of deferred financing fees	(1,570)	(164)	(2,383)
Purchase of treasury stock at market prices	(826)	(1,114)	(634)
Payment of dividends			(1,499)
Excess tax benefit from stock compensation		54
Net proceeds from issuance of common stock	34	270	47
Net cash used in financing activities	(2,775)	(51,362)	(103,848)
Effect of exchange rate changes on cash	(463)	(126)	480
Net (decrease) increase in cash and cash equivalents	(6,749)	37,270	12,288
Cash and cash equivalents at beginning of year	60,866	23,596	11,308
Cash and cash equivalents at end of year	$ 54,117	$ 60,866	$ 23,596